Surprisingly, blood rain turned the sea red at a popular Iranian tourist destination, but there's science behind the blood-red water.

Amazing footage shows a beach turning blood red as heavy rain falls. The torrential downpour lit up the Silver and Red Beach on Hormuz Island in Iran as tourists gathered to take a look.

The “blood rain” that turned an Iranian ... some of which have taken on vivid shades of red, yellow and orange as they moved upward and interacted with water and minerals from other rock ...